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Finding the Fourth Proportional to 8,879.41, 13,314.54 and 2,954.15

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Solution

The fourth proportional to 8,879.41, 13,314.54 and 2,954.15 is: 4,429.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,879.41 : 13,314.54 = 2,954.15 : x
  2. Step 2: Convert to fraction form
    8,879.41/13,314.54 = 2,954.15/x
  3. Step 3: Cross multiply
    8,879.41x = 13,314.54 × 2,954.15
  4. Step 4: Simplify right side
    8,879.41x = 39,333,181.63
  5. Step 5: Solve for x
    x = 39,333,181.63/8,879.41
  6. Step 6: Final answer
    x = 4,429.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.